Vehicle-wheel.



TTED sTATEs PATENT carros.

CHARLES DANIEL MAHONY, OF ST. JOHN, NEW BRUNSWICK, CANADA. i

VEHICLE-WHEEL.

Specication of Letters Patent.

Application led July 14, 1914. Serial No. 850,916.

To all whom t may concern.'

Be it known that I, CHARLES DANIEL MAHONY, a resident of No. 110 Princess street, in the city of St. John, in the city and county of St. John, Province of New Brunswick, Dominion of Canada, gentleman, and a subject of the King of Great Britain, have invented certain new and useful Improvements in Vehicle-Wheels, of which the following is the specilication. y

This invention relates to vehicle wheels, andv more especially to the rim construction thereof. The objects of the invention are to devise a wheel having a demountable part that shall be inexpensive in prime cost, be expedient of manufacture and shall not only facilitate the removal of tires and the subsequent renewal, but shall also safeguard the tires and air-tubes during such processes. Further objects of the invention are to provide a device having a minimum number of moving parts and also a positive locking apparatus, and these of simple and substantial form. I

The invention consists essentially in the novel construction and arrangement of parts hereinafter described, and illustrated in the drawings which form part of this specication.

1n the drawings lFigure 1 is an elevation of a vehicle wheel constructed according to my invention."

Fig. 2 is a sectional elevation taken on the' line A-B in Fig. 1.

Fig. 3 is a sectional elevation taken on the line t3-D in Fig. 1. y

llFig. 4 is an elevation of part of the locking ring, showing the locking Stud with the head cut o".

Tn the drawing, like numerals of reference indicate corresponding parts in each of the figures.

The wheel 10, havingif desired, the spokes 11 and the felly 12, also the hub 13, may be of any ordinary or convenient form, and do not form part of my invention which is confined to the rim.

0n the felly 12, is mounted an annular rim part 14, having a iiange 15 offset i11- wardly at one edge, and another smaller flange 16 olfset outwardly on the other edge. This rim part is referably made with tapered arts 17 and 18 on the` inner periphery, a apted to engage correspondingly tapered parts on the exterior of the fixed rim or felly band.

Another annular rim part 19, also having an inwardly offset flange 20, and an outwardly offset liange 21, is secured to the rim part 14, by studs 22, and also by the bolts 23 which pass through both rim parts, and through the felly band also, securing the demountable `rim as a whole, to the wheel.

l prefer to use separate tire-clamping rings 24 loosely mounted on the rim parts 14 and 19, butl do not wish to confine myself to this construction, as the flanges 16 and 21 may be so shaped as to take the place of any suitable form of clamp-ring for the tires.

The means of locking the parts of the demountahle rim together, is by the studs 22 which are secured to the flange 15, and pass through the open orifices provided for them, in the iiange 20. The studs are provided with an annular groove 25 at that part which projects through the flange 20, and this groove is used in combination with the locking-ring 26, which has key-hole slots 27 adapted to engage in these grooves'at the narrowT end of the slot 28. V A feature of importance in the construction, is to make the locking-ring 26, also the grooves 25, of less width than the flange 20. This prevents the flanges of the rim catching in the stud grooves, when the parts are being fitted together.

The holes 29 for the bolts 23, are so arranged that they are not in line for putting the bolts in, until the ring 26 is. in its locked position.

1n the operation of the device, to remove a tire, the bolts 23 are first removed. Should it be considered desirable then, the complete rim, with the tire on it, may be removed from the vehicle, las for instance to a place out of the rain, or to a place in the shade where it was more convenient to work; otherwise the rim may left n situ.

A lever is used to partially rotate the locking ring 26, so that the larger ends of the key-hole slots come opposite the-studs 22. This lever is inserted in the slot 30, which is formed in not only the locking ring 26 but also the flanges 15 and 19; and if desired may extend fartheninto the felly itself, (i. e. the wooden part).

It will be noticed that these slots are ar- Patented Cot. 22, 1918..v

pin

ranged (see Fig. l) so `he sloss 30a are 'in line as regards the ring 26 and the oher parte only when the ring is in its locked position; and zo unlock he ring, Jdie lever would be insered in one of Jdie slots 30h and pushed till these slos in ghe ring 2S got in line Wiah he slots in Jhe paris 19 and l5, when the lockingrg` ring would become disengaged from the szuds :22. For locking the ring, the lever is insered in one of the slofis 30a. lt may he desirable to make he slos in the parts l5 and 19 rather longer han Jfhose in 1the ring 2G, "no afford good clearance.

i/When the ring 26 is releasedl` the fini part 19 may be removed frein the rini part l, and the Jcire replaced or mended as Yfound neeessary.

The construction oulined here has many obvious advanages over he fj/pe an presen?J in use; it may he readily handled hy one mane and it provides no haroorage `fornnid and dirt to rot the tires. The inner 'uhe cannot he pinoheo in puting on or taking 31 mi y 4 -Irl J. L ou. Lne movable ling, 2o cannon rouen or @haie the tire or zuhe The 'Saper construc- `llZion of J@he 'elly insures a 'pefecl fit and relieves the bolts (which are an easy fit) from shearing stre-ss;

lffhas l claim as my invention is ln a deinountahle rnn and in combination,

an annular rim part having tapered portions adjacent no the inner and outer edges of its periphery and forn'led with a lange Oset inwerdly at 'the inner edge and another smaller flange oilse outwardly at the outer edgev` a second rim part having an inwardly oi'set flange adapted to abut the 'flange of he iirst rini part and having an outwardly oiset flange, a clamping ring having keyhole slots, and studs adapted io exend hrough both rinl sections and provided willi annular grooves coacl-ing with the keyhole slots in he clamping ring.

En Winess whereol1 have hereuno set any hand in ihe presence 'of two Witnesses.

@RAR-LES DANEL MAl-NY.

@Witnesses s 

